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Performa Invoice 42 Anemometer, Simple Useful for determination of low wind speeds. This Robinson's cup anemometer comprises 4 light weight, plastic, hemispherical cups mounted at the end of light weight metal spokes and attached to a central hub. The hub pivoted on metal shaft on top of a vertical support rod on a stable base and is capable of rotating freely about vertical axis. Three cups are black and one red to facilitate counting of rotations per unit time. 600.00 1 Pcs 600.00 43 4070050 Human Torso, Male & Female A Very useful and beautiful model of natural size dissectible into 12 parts, without sterno abdominal wall but with ribs, sternum, clavicle with their attachments. Thoracic and abdominal organs detachable individually like lungs, heart, stomach, liver, intestine etc., for detailed study. Half of the skull cap is removable to show brain and its structure, which can be taken out, sectioned head and neck are showing internal organs of that region. Male/Female reproductive organs can be easily taken out dissectible into 2 parts. (Male or Female can be supplied as per customer's requirement). Natural size with numbered Key Card. 44 Phase of Moon The model shows earth at the centre and Moon revolving around it. Phenomena of full moon, half moon, new moon etc. can be clearly explained. 2,100.00 1 Pcs 2,100.00 720.00 1 Pcs 720.00 45 Small torso Model all parts dissectable 750.00 1 Pcs 750.00 46 PHBAA210 Hydraulic Press, Syringe Simple construction permits the use of water or even air for demonstration of the concepts involved. but smaller in size with syringes of 20ml and 5ml, with their nozzles joined through a 3- position valve and flexible rubbing. Both the pistons provided with limit-stop to prevent their complete ejection from the barrels and have loading platform at their top. 500.00 1 Pcs 500.00 47 PHCAA280_1 Newtonian Demonstrator, Metal Frame Dramatically illustrates Newton’s third law of motion and works well on an overhead projector. Its graphical demonstration of elastic collisions qualitatively, is far superior to any other device on account of its size and total absence of friction. The unit is completely assembled and consists of a frame with six plated steel balls of 19mm diameter, suspended on the frame through lightweight cord. By pulling and releasing the different number of balls, collision results among the balls can be observed to draw many interpretations. 48 PHNAA160_2 ROCKS AND MINERAL COLLECTION SET Set of 50 specimens, inWooden Tray: Set of 50 specimens properly labeled in a partitioned wooden tray with a glass front. 600.00 1 Pcs 600.00 900.00 1 Pcs 900.00 49 Season model The four Globes (balls) with inclined axis, always pointing in the same direction, with candle to represent Sun in centre of metal disc 960.00 1 Pcs 960.00 50 4100300 Earth Layer Model The model is showing the layers inside the earth. It is in seven detachable parts, which indicate the interior of the earth. The different colours are used to show the various earth layers. When we take off the upper part,i.e. Earth's crust, inner core is clearly visible alongwith all the layers in a single view. All the layers are detachable one by one to find the periphery of each layer. Supplied on support stand. 1,000.00 1 Pcs 1,000.00 www.optec.in 5356/9, Cross Road 1, Ambala Cantt. 133001 (Haryana) India Tel: +91-171-2642165, Fax: 91-171-2642265, E-mail: sales@optec.in 4 of 6
Performa Invoice 51 PHEAA080 Water Turbine with Dynamo Model To show the conversion of mechanical energy into electrical energy by using it as a water turbine to drive a dynamo for producing electricity. The plastic impeller housed in a cast metal casing with a clear Perspex front that allows viewing of its functioning. The inlet tube provided at the top and outlet tube on the side, both tubes riffled for tubing connectors. A dynamo mounted along the impeller shaft glows the LED indicating the conversion of mechanical energy to electrical energy 1,300.00 1 Pcs 1,300.00 52 PHNAA190 Elementary Planetarium A durable, economical, simplified, hand-operated model that demonstrates the orbital relationship of movement of Sun, Earth and Moon throughout the year and shows solar, lunar and annular eclipses, moon phases, and seasons etc. The sun sphere is lighted with the beam always pointed towards the Earth to show moon shadow and display twilight zones on the earth sphere. A chain drive keeps the North-pole pointed towards the Polaris. 53 PHKAA260 Colour Mixing Box This device consists of a double ended metal For performing the colour mixing experiments, the side apertures are provided. When the side apertures are not in use then the blanking plates are there. This apparatus is utilized for performing the reflection, refraction and colour mixing experiments. A light source (12V, 24W lamp) is also provided with the apparatus. Apertures are provided with the adjustable mirrors. 1,300.00 1 Pcs 1,300.00 3,600.00 1 Pcs 3,600.00 CHARTS 1 Biosphere Laminated 50x75cm 70.00 1 Pcs 70.00 2 Optical Instruments & Microscope Laminated 55x90cm 90.00 1 Pcs 90.00 3 Electromagnetism Polyart 75x100cm 240.00 1 Pcs 240.00 4 Our Universe (Heavenly Bodies) Laminated 75x100cm 90.00 1 Pcs 90.00 5 Sources of Energy Laminated 50x75cm 240.00 1 Pcs 240.00 6 Day & Night Laminated 50x75cm 240.00 1 Pcs 240.00 7 Newton’s Laws of Motion Polyart 75x100cm 70.00 1 Pcs 70.00 8 Wave Motion Laminated 55x90cm 90.00 1 Pcs 90.00 9 Green House Effect Laminated 90.00 1 Pcs 90.00 10 The Eyes: It’s Defects & Remedies Laminated 55x90cm 120.00 1 Pcs 120.00 11 Acid Rain & Ozone LayerLaminated 55x90 240.00 1 Pcs 240.00 12 Bio Gas (Gobar Gas) Polyart 75x100cm 240.00 1 Pcs 240.00 13 Electroplating Laminated 55x90cm 90.00 1 Pcs 90.00 14 Separation of Substances Ployart 75x100cm 120.00 1 Pcs 120.00 15 Metric Weights and Measurements laminated 55x90cm 375.00 1 Pcs 375.00 16 Telescope Laminated 55x90cm 240.00 1 Pcs 240.00 17 Air Pollution 75x100cm polyart 240.00 1 Pcs 240.00 18 Eclipses on polyart 75x100cm 240.00 1 Pcs 240.00 19 Earth and it's Motion Laminated 75x100cm 90.00 1 Pcs 90.00 20 Refraction of Light Polyart 75x100cm 90.00 1 Pcs 90.00 21 Static Electricity laminated 55x90cm 240.00 1 Pcs 240.00 22 Balance (Principle of Archimedes) Laminated 55x90cm 90.00 1 Pcs 90.00 23 Rocket & Artificial Satellite Laminated 55x90cm 120.00 1 Pcs 120.00 24 Measurements Laminated 55x90cm 240.00 1 Pcs 240.00 25 Work & Power laminated 55x90cm 240.00 1 Pcs 240.00 26 The Seasons Laminated 50x75cm 90.00 1 Pcs 90.00 27 Three Kinds of Levers Laminated 55x90cm 90.00 1 Pcs 90.00 28 Water Pollution (Air & water pollution) Polyart 75x100cm 90.00 1 Pcs 90.00 29 Light Reflection fromSpherical Mirrors Polyart 75x100cm 240.00 1 Pcs 240.00 30 Refraction of Light by Spherical Lenses Polyart 75x100cm 240.00 1 Pcs 240.00 31 Magnetism Polyart 75x100cm 70.00 1 Pcs 70.00 32 Solar System Hindi laminated 75x100cm 90.00 1 Pcs 90.00 33 Wind Energy Laminated 55x90cm 240.00 1 Pcs 240.00 34 Renewable sources of energy Laminated 50x75cm 120.00 1 Pcs 120.00 35 Heat & Temperature Laminated 55x90cm 240.00 1 Pcs 240.00 36 Sound Polyart Chart 75x100cm 70.00 1 Pcs 70.00 38 Different Kinds of Primary Cells Laminated 55x90cm 70.00 1 Pcs 70.00 39 Pulleys (Simple Machines) Laminated 55x90cm 90.00 1 Pcs 90.00 40 Spring & Neap Tides Lmainated 50x75cm 120.00 1 Pcs 120.00 www.optec.in 5356/9, Cross Road 1, Ambala Cantt. 133001 (Haryana) India Tel: +91-171-2642165, Fax: 91-171-2642265, E-mail: sales@optec.in 5 of 6
Page 1 and 2: Performa Invoice Ms. Sanskriti Sing
Page 3: Performa Invoice 33 PHHAA080 Electr

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